{"id":1348,"date":"2019-08-06T10:13:59","date_gmt":"2019-08-06T08:13:59","guid":{"rendered":"https:\/\/www.ayhanarda.com\/blog\/?p=1348"},"modified":"2019-08-06T10:17:09","modified_gmt":"2019-08-06T08:17:09","slug":"ansible-nedir-ubuntu-uzerine-ansible-kurulumu-ve-host-ekleme","status":"publish","type":"post","link":"https:\/\/www.ayhanarda.com\/blog\/2019\/08\/ansible-nedir-ubuntu-uzerine-ansible-kurulumu-ve-host-ekleme\/","title":{"rendered":"Ansible Nedir ? Ubuntu \u00fczerine Ansible Kurulumu ve Host Ekleme"},"content":{"rendered":"\n

Ansible Nedir ? Ubuntu \u00fczerine Ansible Kurulumu ve Host Ekleme<\/h4>\n\n\n\n

Ansible, sistem y\u00f6neticisinin i\u015flerini basitle\u015ftirmek i\u00e7in geli\u015ftirilmi\u015f, agent a ihtiya\u00e7 duymayan (agent bazen iyidir) otomasyon arac\u0131d\u0131r. K\u0131saca i\u015flem yapaca\u011f\u0131n\u0131z hostlar\u0131 bir dosya da kategorilere ay\u0131r\u0131p t\u00fcm\u00fcne ya da kategoriye uyan t\u00fcm\u00fcne ya da diledi\u011finiz tek sunucuya komut g\u00f6ndermeniz yarar , sadece komut g\u00f6ndermekle kalmaz ayr\u0131ca playbook ad\u0131n\u0131 verdi\u011fi dosyalar ile sunucular \u00fczerinden bir \u00e7ok i\u015flemi bir re\u00e7ete haline getirip otomasyona sokabilirsiniz , \u00f6rne\u011fin 1000 sunucuya ayn\u0131 anda nginx kurup virtual host ayarlar\u0131n\u0131 de\u011fi\u015ftirip yay\u0131na al gibi i\u015flemlerin \u00e7ok daha fazlas\u0131 m\u00fcmk\u00fcnd\u00fcr.<\/p>\n\n\n\n

Ansible kurulumuna ge\u00e7elim, ben test i\u00e7in bir ubuntu kurdum , versiyon 19. Sonra a\u015fa\u011f\u0131daki komutlar\u0131 s\u0131ras\u0131 ile \u00e7al\u0131\u015ft\u0131r\u0131yorum<\/p>\n\n\n\n

apt-get install software-properties-common
apt-add-repository ppa:ansible\/ansible
apt-get update
apt-get install ansible<\/em><\/p>\n\n\n\n

B\u00f6ylece ansible kurulumum tamamlanm\u0131\u015f oldu , do\u011frulamak i\u00e7in a\u015fa\u011f\u0131daki komutu kullanabilir ayr\u0131ca versiyonunu g\u00f6rebilirsiniz.<\/p>\n\n\n\n

ansible –version<\/p>\n\n\n\n

root@ansible:\/home\/ayhanarda# ansible –version
ansible 2.8.3
config file = \/etc\/ansible\/ansible.cfg
configured module search path = [u’\/root\/.ansible\/plugins\/modules’, u’\/usr\/share\/ansible\/plugins\/modules’]
ansible python module location = \/usr\/lib\/python2.7\/dist-packages\/ansible
executable location = \/usr\/bin\/ansible
python version = 2.7.16 (default, Apr 6 2019, 01:42:57) [GCC 8.3.0]<\/p>\n\n\n\n

\u015eimdi s\u0131ra host eklemeye geldi , ansible hostlara ssh key ile ba\u011flanmakta , \u00f6nce sunucumuzda bir key olu\u015ftural\u0131m ki daha sonra bu key’i hostlara g\u00f6nderip \u015fifresiz bir \u015fekilde oturum a\u00e7abilelim.<\/p>\n\n\n\n

ssh-keygen -t rsa<\/em><\/p>\n\n\n\n

Yukar\u0131daki komutu next next diyerek ge\u00e7ebilirsiniz , sonras\u0131nda keyimiz default ad\u0131 ile olu\u015fmu\u015f olacak , bunu hostumuza g\u00f6ndermek i\u00e7in a\u015fa\u011f\u0131daki komutu kullanabilirsiniz. Benim \u00f6rnek hostumun ip adresi 10.148.208.100 , Siz kendi ba\u011flanaca\u011f\u0131n\u0131z ip adresini yazmal\u0131s\u0131n\u0131z. A\u015fa\u011f\u0131daki komutu yazd\u0131ktan sonra Size bir seferlik hostun \u015fifresini soracak , yaz\u0131p ge\u00e7ebilirsiniz ve art\u0131k key’iniz g\u00f6nderilmi\u015f olacak.<\/p>\n\n\n\n

ssh-copy-id root@10.148.208.100<\/em><\/p>\n\n\n\n

Sonra key’in \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131n denemek i\u00e7in a\u015fa\u011f\u0131daki \u015fekilde host’a ba\u011flanmay\u0131 deneyebilirsiniz.<\/p>\n\n\n\n

ssh root@10.148.208.100<\/em><\/p>\n\n\n\n

\u015eifresiz olarak Sizi i\u00e7eri ald\u0131 ise key’iniz tamam demektir.<\/p>\n\n\n\n

Bu i\u015flemi t\u00fcm ba\u011flanaca\u011f\u0131n\u0131z hostlara yapmal\u0131s\u0131n\u0131z.<\/p>\n\n\n\n

\u015eimdi gelelim bu hostlar\u0131 ansible’\u0131n config dosyas\u0131na ekleme i\u015flemine. Sevdi\u011finiz bir edit\u00f6r ile \/etc\/ansible\/hosts dosyas\u0131n\u0131 a\u00e7al\u0131m ve i\u00e7ini a\u015fa\u011f\u0131daki \u015fekilde doldural\u0131m.<\/p>\n\n\n\n

nano \/etc\/ansible\/hosts<\/em><\/p>\n\n\n

## Ayhan ARDA
\n[servers]
\nhost1 ansible_ssh_host=10.148.208.100
\nhost2 ansible_ssh_host=10.148.208.101
\nhost3 ansible_ssh_host=10.148.208.102<\/p>\n

#[web_servers] \u00f6rnek!!
\n#host20 ansible_ssh_host=10.148.208.120
\n#host21 ansible_ssh_host=10.148.208.121
\n#host22 ansible_ssh_host=10.148.208.122<\/p>\n\n\n\n

\u015e\u0130mdi geleneksel bir ansible testi yapal\u0131m , ping g\u00f6nderip pong cevab\u0131 almaya \u00e7al\u0131\u015faca\u011f\u0131z.<\/p>\n\n\n\n

root@ansible:\/home\/ayhanarda# ansible all -m ping<\/p>\n\n\n\n

host1 | SUCCESS => {
“ansible_facts”: {
“discovered_interpreter_python”: “\/usr\/bin\/python”
},
“changed”: false,
“ping”: “pong”
}<\/p>\n\n\n\n

host2 | SUCCESS => {
“ansible_facts”: {
“discovered_interpreter_python”: “\/usr\/bin\/python”
},
“changed”: false,
“ping”: “pong”
}<\/p>\n\n\n\n

host3 | SUCCESS => {
“ansible_facts”: {
“discovered_interpreter_python”: “\/usr\/bin\/python”
},
“changed”: false,
“ping”: “pong”
}<\/p>\n\n\n\n

Her \u015fey yolunda g\u00f6z\u00fck\u00fcyor , \u015fimdi tek host a bir shell komutu g\u00f6nderelim, bakal\u0131m cevap alabilecek miyiz? Ben host1’e g\u00f6dneriyorum , all diyerek t\u00fcm\u00fcne g\u00f6nderebilirsiniz.<\/p>\n\n\n\n

root@ansible:\/home\/ayhanarda# ansible -m shell -a “uptime && ifconfig” host1<\/p>\n\n\n\n

host1 | CHANGED | rc=0 >>
\n 11:06:17 up 1 day, 1:29, 4 users, load average: 8.28, 7.81, 7.73
\nenp4s0: flags=4163 mtu 1500
\n inet 10.148.208.100 netmask 255.255.255.0 broadcast 10.148.208.255
\n inet6 fe80::1e1b:dff:fe86:db8b prefixlen 64 scopeid 0x20
\n ether 1c:1b:0d:86:db:8b txqueuelen 1000 (Ethernet)
\n RX packets 6440934 bytes 423498590 (403.8 MiB)
\n RX errors 1221 dropped 0 overruns 6 frame 1221
\n TX packets 247728 bytes 327505028 (312.3 MiB)
\n TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
\n device memory 0xdf200000-df27ffff <\/p>\n\n\n\n

Birde i\u015fleri daha kolay hale getirmek i\u00e7in Ansible Tower var , bunu farkl\u0131 bir yaz\u0131da ele alaca\u011f\u0131m. <\/p>\n\n\n\n

Ayhan ARDA<\/p>\n

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